Resonance and absorption band in the classical magnetoactive semiconductor-insulator superlattice

In-Plane Propagating Coupled Photon-Phonon-Magnetoplasmons, their Field Structure and Dispersion in GaAs/AlAs Superlattices

“…A) agrees with the characteristic frequency of non-localized modes ωb , obtained analytically in EMΑ neglecting the phonon effects [2]. The influence of phonons in the region shown in Fig.…”

“…A results mainly in slight shift of the second branch (P2) cut-off frequency with respect to the value ω. The latter can be obtained in EMΑ including plasmon-photon coupling only [2].…”

“…In-plane propagating modes in superlattices (SL) are of interest for material science because they give information on the anisotropic properties hardly accessible in other ways [1,2]. In the effective medium approximation (EMΑ), the component of SL dielectric tensor along the uniaxis has the poles not coinciding with that of the host materials, and it is not determinable from the normal-incidence data [3].…”